CN1598316A - Scroll compressor - Google Patents
Scroll compressor Download PDFInfo
- Publication number
- CN1598316A CN1598316A CNA2004100785751A CN200410078575A CN1598316A CN 1598316 A CN1598316 A CN 1598316A CN A2004100785751 A CNA2004100785751 A CN A2004100785751A CN 200410078575 A CN200410078575 A CN 200410078575A CN 1598316 A CN1598316 A CN 1598316A
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- China
- Prior art keywords
- chamber
- scroll compressor
- volute
- moving
- main frame
- Prior art date
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01C—ROTARY-PISTON OR OSCILLATING-PISTON MACHINES OR ENGINES
- F01C17/00—Arrangements for drive of co-operating members, e.g. for rotary piston and casing
- F01C17/06—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements
- F01C17/066—Arrangements for drive of co-operating members, e.g. for rotary piston and casing using cranks, universal joints or similar elements with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C27/00—Sealing arrangements in rotary-piston pumps specially adapted for elastic fluids
- F04C27/005—Axial sealings for working fluid
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C18/00—Rotary-piston pumps specially adapted for elastic fluids
- F04C18/02—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents
- F04C18/0207—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form
- F04C18/0215—Rotary-piston pumps specially adapted for elastic fluids of arcuate-engagement type, i.e. with circular translatory movement of co-operating members, each member having the same number of teeth or tooth-equivalents both members having co-operating elements in spiral form where only one member is moving
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
Abstract
Provided is a scroll compressor, which allows coolant in a compressor chamber to be partially discharged so that frictions generated in frictional surfaces between an orbiting scroll and an Oldham ring and between the Oldham ring and a main frame may be decreased.
Description
Technical field
The present invention relates to scroll compressor, particularly relate to a kind of like this scroll compressor, it reduces frictional force between the parts by the high pressure that the moving motion of adjusting by means of the moving volute in scroll compressor produces in compression process.
Background technique
Usually the operation of scroll compressor is to produce by means of the fixing relative movement between volute and the moving volute to compress, and owing to its for example the efficient height, noise is low, size is little and advantageous feature such as in light weight is widely used for room air conditioner and air conditioner in car field.
Scroll compressor is divided into high pressure compressor and low pressure compressor according to its body of inflating, and promptly no matter the gas of inspiration is filled in the housing, or the gas of discharging charges in it, and following description is based on low pressure compressor.
Scroll compressor generally includes main frame, be supported on this main frame upper surface and be used for the Othemos ring (oldham ring) of linear motion, be supported on this main frame top and be used for the moving volute of moving, and be arranged on this moving volute top and be fixed in the fixedly volute of this main frame.In addition, this fixedly volute have spirally the fixed scroll of coiling, and the moving volute has the moving scrollwork that coils spirally and form at an upper portion thereof.More particularly, this fixed scroll and moving scrollwork form pressing chamber, and the fluid that is contained in the pressing chamber is compressed owing to the motion of moving volute.
Fig. 1 is the sectional view that general scroll compressor that prior art is shown carries out compression process.
With reference to figure 1, conventional scroll compressor comprises the fixed scroll 81 that is formed on the fixing volute, be formed on the moving volute upper surface and insert in this fixed scroll 81 to form the moving scrollwork 71 of pressing chamber P, and the floss hole 9 that is formed on this moving scrollwork 71 and fixed scroll 81 centers, so that compressed fluid can pass through its discharge.
In order to describe the compression process that said structure produces, be collected in volume be formed on more greatly fluid among the pressing chamber P of outside of this scrollwork 71 and 81 by means of the moving of moving scrollwork 71 to central motion, because fluid is to central motion, its volume reduces gradually, thereby pressure increases.In addition, the pressure of fluid is in the center of scrollwork 71 and 81 maximum, and the fluid that accumulates in the center is discharged by floss hole.
As above move and produce in No. the 6287099th, the U. S. Patent that same claimant that compressor for compressing has been disclosed in the application submits to.
Conventional scroll compressor can have tip seals in the upper space of moving scrollwork, so that prevent that fluid section ground is to external leakage when the pressure of fluid too increases.
But under the situation of the conventional lower scroll compressor with said structure, this tip seals is owing to the high temperature of pressing chamber P may melt, and coolant gas may leak into the outside of pressing chamber P.
In addition, if the pressure of pressing chamber P too increases, this excessive pressure puts on the Othemos ring that is supported between moving volute and the main frame.That is to say, if excessive pressure is applied on the Othemos ring, excessive pressure is producing excessive frictional force between the upper end of the lower end of this moving volute and this Othemos ring and between the upper end of the lower end of this Othemos ring and main frame, thereby increases because the pressure loss that frictional force causes.
Summary of the invention
Therefore, the present invention relates to scroll compressor, it can alleviate widely because one or more problems that the shortcoming and defect of prior art causes.
The purpose of this invention is to provide the scroll compressor with improved Othemos ring, it can press freezing mixture from pressing chamber discharging, and reduces to be applied to frictional force on the Othemos ring by the medium pressure gas that uses discharging.
Another object of the present invention provides the pressurized gas that can prevent in the pressing chamber scroll compressor to external leakage, owing to use the medium pressure gas of discharging to lift Othemos ring and moving volute, so that this moving volute closely is attached to fixedly volute.
Another purpose of the present invention provides scroll compressor, and wherein the pressure in the pressing chamber does not produce excessive frictional force between the thrust face of the lower surface of Othemos ring and main frame.
Other advantages of the present invention, purpose and feature, a part proposes in the following description, will be appreciated that behind the specification of those of ordinary skill below having read of a part to the field or grasp from the practice of the present invention.The structure that these purposes of the present invention and other advantages are specifically noted by printed instructions and its claim and accompanying drawing can realize and obtain.
In order to realize that these purposes are with other advantages and according to purpose of the present invention, as imbody and generalized description here, a kind of scroll compressor is provided, and it comprises: the moving volute that has the pressing chamber and the bypass channel of the upper and lower end formation that runs through its main body at an upper portion thereof; Make this moving volute can carry out the fixedly volute of moving within it with compresses refrigerant; The moving volute is laid Othemos ring thereon, and this Othemos ring has and is formed on its upper surface and has the last chamber of the predetermined width and the degree of depth and be formed on the following chamber that its lower surface has the predetermined width and the degree of depth, and nurse ring that should Austria is laid main frame thereon.
Preferably, chamber is connected in the lower end of bypass channel on this.
Also preferred, this pressing chamber is communicated with the upper end of bypass channel.
The lower end of bypass channel preferably is arranged to be located at when the moving volute carries out moving between the inner circumference and excircle of chamber on this.
This is gone up, and the chamber/following chamber can have ring (strap) shape of predetermined diameter.
Preferably, the width of following chamber is equal to or greater than the width of chamber at least.
This is gone up, and the chamber/following chamber can comprise that at least one is placed in its inboard Sealing.
This scroll compressor can also comprise the intercommunicating pore with predetermined diameter, is communicated with following chamber so that go up the chamber.
Preferably, Othemos ring has at least one key that stretches out on its lower surface, and main frame has at least one keyway, so that this key landing within it.
In another aspect of this invention, provide a kind of scroll compressor, it comprises: the live axle with formation oil groove thereon; Be used to support the main frame of this live axle, this main frame has and relatively is formed on the keyway that its upper surface has predetermined depth and width; Be combined in the fixedly volute of this main frame regularly; Be supported on the moving volute on this main frame top, this moving volute has at least one bypass channel in the one side, so that compressed freezing mixture is partly discharged by this bypass channel; And being supported on Othemos ring between this moving volute and the main frame, this Othemos ring has and is used to store a part and discharges the back pressure chamber of compresses refrigerant and predetermined altitude is stretched out on the surface above and/or under its main body projection.
In still another aspect of the invention, provide a kind of scroll compressor, it comprises the main frame that has directed thrust directed thrust surfaces at an upper portion thereof; Contact the Othemos ring that carries out linear reciprocating motion with its lower surface with this directed thrust directed thrust surfaces, this Othemos ring thereon and/or lower surface have the backpressure regulation unit so that coolant gas partly flows through wherein; And be seated in the upper surface of this Othemos ring and be formed for the compression member of the pressing chamber of compresses refrigerant.
The general description and the following detailed that should be understood that front of the present invention all are exemplary and explanat, and provide as claimed of the present invention further specifying.
Description of drawings
The accompanying drawing that is comprised provides further understanding of the present invention, its comprise in this application and constitute the application with part, accompanying drawing illustrates embodiments of the invention and is used from specification one explains principle of the present invention.Wherein:
Fig. 1 is the sectional drawing that the general scroll compressor of correlation technique is shown;
Fig. 2 is the sectional drawing of amplification that the critical piece of scroll compressor of the present invention is shown;
Fig. 3 is the side cutaway view that the Othemos ring of scroll compressor of the present invention is shown;
Fig. 4 is the perspective view that scroll compressor main frame of the present invention is shown;
Fig. 5 illustrates the moving volute that acts in the scroll compressor of the present invention and the pressure distribution on the Othemos ring; And
Fig. 6 is a sectional drawing, is illustrated in the power that flowing coolant gas and coolant gas produced in pressing chamber in the scroll compressor of the present invention.
Embodiment
Specific embodiments of the invention are described below with reference to the accompanying drawings.But spirit of the present invention is not limited to these embodiments, within the scope of the invention or in other scopes of invention that fall behind by adding, change and deleting that other elements are easy to propose other embodiments.
Fig. 2 is the sectional drawing of amplification that the critical piece of scroll compressor of the present invention is shown.
With reference to figure 2, scroll compressor 100 of the present invention comprises the main frame 300 of the upper end that is used for supporting driving shaft, be seated in this main frame top so that the Othemos ring of linear reciprocating motion 200, be seated in this Othemos ring top with the moving volute 400 by the moving compresses refrigerant, and be fixed in this main frame 300 and form the fixedly volute 500 of pressing chamber P within it with this moving volute.
Specifically, main frame 300 is included in its center and is used to drive shaft hole 340 that live axle is passed, the directed thrust directed thrust surfaces (will be described below) that contacts with the lower surface of Othemos ring 200 and from directed thrust directed thrust surfaces lateral central concave predetermined length, have the following keyway (describing below) of predetermined depth and width.
In addition, Othemos ring 200 is included at least two last keys 210 that its upper surface stretches out predetermined altitude and combines with the lower end of moving volute 400.In addition, also be formed with a following key (describing below) in it so that be seated on the following keyway that is formed in the main frame 300.
In addition, the last chamber 220 with predetermined depth is formed on the position of opening an intended distance along diametric(al) and Center Gap.Say that more specifically last chamber 220 forms the ring with predetermined depth and width.In addition, has of the lower bottom part upwards formation of the following chamber 230 of predetermined altitude and width from Othemos ring 200.Here, the pressure coolant gas that is stored in pressing chamber P is accommodated in the space of chamber 220 and following chamber 230.In addition, connectivity slot 240 vertically forms, and goes up chamber 220 and following chamber 230 so that connect.Therefore, the coolant gas that accumulates in chamber 220 moves along connectivity slot downward chambers 230 240.
Simultaneously, the moving volute 400 that is seated in Othemos ring 200 tops comprises having discoidal main body 450 and crooked spirally and have a moving scrollwork 410 of predetermined altitude in this main body upper end.In addition, be formed with keyway 420 in this moving volute 400 lower ends one side, key inserts and is seated in wherein on stretching out on Othemos ring 200 upper ends, and the moving axle 440 with circular bar shape, and it vertically has hollow space in the bottom surface definite length extended of this main body 450 and its.
In addition, be formed with the bypass channel 430 of inclination at a predetermined angle with top and the bottom by this main body 450.More particularly, this bypass channel 430 forms with the last chamber 220 that is formed on these Othemos ring 200 tops and is communicated with.Therefore, the pressure coolant gas among the pressing chamber P is moved down into chamber 220 along this bypass channel 430.
Simultaneously, the fixedly volute 500 that is seated in moving volute 400 upper ends is fixed scrolls 510 hollow and that comprise helical buckling, stretch out predetermined length from the upper inner surface of volute.More particularly, this fixed scroll 510 is seated between the moving scrollwork 410 so that form pressing chamber P when moving volute 400 carries out moving.In addition, the volume of this pressing chamber P reduces towards the center of moving volute 400, therefore is contained in the freezing mixture of pressing chamber P with high pressure compressed.And floss hole 520 is formed on this fixedly center of volute 500, so as with the cryogen discharge of high pressure compressed to the drain chamber (not shown).
The squeeze operation of scroll compressor 100 is described now.
At first, freezing mixture is introduced in the scroll compressor, and the freezing mixture of introducing is transfused to pressing chamber P.Say that more specifically freezing mixture is accommodated in the pressing chamber than big volume at the edge that is formed at scrollwork 410 and 510.In addition, when moving volute 400 carried out moving, the volume of pressing chamber reduced and shifts to the center along scrollwork 410 and 510.Then, owing to shift to the center, be transferred to drain chamber by floss hole 520 with the freezing mixture of high pressure compressed.
Simultaneously, fixedly the edge of volute 500 is incorporated into main frame 300 by at least one bonded block.In addition, moving volute 400 is in the upper surface to-and-fro motion linearly of Othemos ring 200.In addition, Othemos ring 200 is in the upper surface to-and-fro motion of main frame 300.
Here, the direction of moving volute 400 linear reciprocating motions is intersected with the direction of the linear reciprocating motion of Othemos ring 200 at a predetermined angle.As a result, moving volute 400 carries out moving on the basis of main frame 300.
Fig. 3 is the side cutaway view that the Othemos ring of scroll compressor of the present invention is shown.
With reference to figure 3, has the last key 210 that stretches out predetermined altitude on the surface thereon according to the Othemos ring 200 of scroll compressor of the present invention.
Specifically, mutually towards the position key 210 on two is arranged, key 210 inserts in the last keyway 420 of the lower surface that is formed on moving volute 400 as mentioned above on this.In addition, the moving axis hole 270 with predetermined diameter is formed on the center of Othemos ring 200, and moving axle 440 is by this moving axis hole 270.
In addition, the last chamber 220 with predetermined width and degree of depth is formed on the position with moving axis hole 270 spaced apart intended distances.More particularly, last chamber 220 forms ring along the circumferential shapes of Othemos ring 200.In addition, last Sealing 250 is installed in the inner circumference limit of chamber 220.Last Sealing 250 works to prevent that the middle pressure freezing mixture of introducing chamber 220 from passing through the upper end of Othemos ring 200 to external leakage.
Here, owing to be collected in the pressure of the middle pressure freezing mixture in the chamber 220, moving volute 400 rises slightly from the upper surface of Othemos ring 200.This reduces the friction between moving volute 400 and the Othemos ring 200.Also have, if moving volute 400 rises, then the upper surface of moving volute 400 is closely attached to the fixing top of volute 500.Therefore oil can not leak by the upper end of moving scrollwork 410.
In addition, in the present invention, do not need independent Sealing to be connected in the top of moving scrollwork 410, so Sealing is compressed high pressure among the P of chamber and the prior art problems of high temperature melting has been eliminated as prior art.
In addition, the lower surface of Othemos ring 200 is provided with the following chamber 230 of the predetermined width and the degree of depth.Lower seal 260 is installed in the inner circumference limit of the following chamber 230 of annular.Therefore, be contained in down in the chamber 230 middle pressure freezing mixture not between Othemos ring 200 and main frame 300 to external leakage.
More particularly, be connected the interior Sealing 250 and 260 in chamber 220 and following chamber 230 by the resin material manufacturing, it can stand high temperature, and its cross section is " " shape.
In addition,, form intercommunicating pore 240 in order to connect chamber 220 and last down 230, so as on freezing mixture in the chamber 220 can move to down chamber 230.In addition, owing to accumulate in down the pressure that the middle pressure freezing mixture in the chamber 230 is had, Othemos ring 200 rises slightly from main frame 300.Therefore, the friction that produces between Othemos ring 200 and main frame 300 reduces.
Simultaneously, the width of following chamber 230 is greater than the width of last chamber 220.This is owing to be applied to down the pressure of chamber 230 greater than the pressure that is applied to Othemos ring 200.This will describe in detail below.
Fig. 4 is the perspective view that the scroll compressor main frame of the spirit according to the present invention is shown.
With reference to figure 4, be included in its center according to the main frame 300 of scroll compressor of the present invention and be used for the drive shaft hole 340 that the live axle (not shown) passes through, and directed thrust directed thrust surfaces 320 contacts with the lower surface face of Othemos ring 200.
In addition, the following keyway with predetermined width and degree of depth is formed on directed thrust directed thrust surfaces, can insert in it so that be formed on the following key of Othemos ring 200 lower ends.
The process of giving the main frame fuel feeding is described now.
At first, lubricant oil moves up along the oil groove that is formed on the live axle, then the space clustering that is provided with to directed thrust directed thrust surfaces 320 from the end of live axle.Then, the oil that accumulates in this space flows along directed thrust directed thrust surfaces 320.Then since with the to-and-fro motion of 320 Othemos rings that contact 200 of thrust face, oil disperses whole directed thrust directed thrust surfaces 320 equably.The downward keyway 310 of part oil that disperses along directed thrust directed thrust surfaces 320 flows.Therefore, lubricant oil reduces the frictional heat that produces between Othemos ring 200 and the directed thrust directed thrust surfaces 320.
Fig. 5 illustrates moving volute in the scroll compressor that acts on the spirit according to the present invention and the pressure distribution on the Othemos ring.
With reference to figure 5, total coolant gas power F
aPress coolant gas counterpressure F in the quilt
Ocm2Skew and make equilibrium of forces.More particularly, coolant gas power F
aBe meant the power that imposes on whole moving volute 400 at pressing chamber P.In addition, middle pressure coolant gas counterpressure F
Ocm2Be meant by being formed on intercommunicating pore 240 in the Othemos ring 200 is discharged into down the cooled gas of chamber 230 from last chamber 220 counterpressure.At this moment, Othemos ring 200 and moving volute 400 rise to predetermined altitude, up to whole coolant gas power F
aWith coolant gas counterpressure F
Ocm2Be in balance.In addition, if be applied to the coolant gas power F of whole moving volute 400
aWith the coolant gas counterpressure F that is discharged into down chamber 230
Ocm2Be in balance, then Othemos ring 200 and moving upward of moving volute 400 stop.
In addition, moving volute 400 and fixedly the adhesion between the volute 500 according under the counterpressure F that produces of chamber 230
Ocm2With the whole coolant gas power F that is applied on the whole moving volute 400
aBetween difference and change.As a result, thrust repulsive force F
Th1Act on moving volute 400 and fixedly on the volute 500 contacted surfaces.
Simultaneously, thrust repulsive force F
Th1The amount that is discharged into down the coolant gas of chamber 230 by the bypass channel 430 that is formed at the main body 450 that runs through moving volute 400 can be regulated, thereby the counterpressure F that is applied to down chamber 230 can be controlled
Ocm2That is to say, be applied to down the counterpressure F of chamber 230 by control
Ocm2, act on the thrust repulsive force F of moving volute 400
Th1+ F
Th2Size can be controlled.
Here, be applied to the power of moving volute 400, be applied to the power of Othemos ring 200, and the thrust repulsive force that is applied to moving volute 400 two ends can be expressed as follows with mathematical equation.
1. be applied to the power of moving volute 400
F
th2+F
ocm1-F
a-F
th1＝0
F
th1＝F
th2+F
ocm1-F
a
2. be applied to the power of Othemos ring
F
ocm2-F
th2-F
ocm1＝0
F
th2＝F
ocm2-F
ocm1
3. thrust repulsive force
∴F
th1＝F
ocm2-F
a
F
th2＝F
ocm2-F
ocm1
Fig. 6 is a sectional drawing, is illustrated in the power according to flowing coolant gas and coolant gas produced in pressing chamber in the scroll compressor of the present invention.
With reference to figure 6, scroll compressor of the present invention is configured to, by a part of pressure coolant gas that is contained among the pressing chamber P of bypass channel 430 dischargings, reduce because in the caused loss of frictional force between moving volute 400 and the Othemos ring 200 and between Othemos ring 200 and main frame 300.
More particularly, if the middle pressure coolant collecting that passes through bypass channel 430 dischargings in last chamber 220, is then gone up the pressure increase of chamber 220.In addition, by pressure, the freezing mixture extruding is seated in the Sealing 250 on the inner circumference limit of chamber 220 on this.
Simultaneously, because last Sealing 250, therefore should be gone up Sealing 250 by having the made that flexibility can stand high temperature owing to pressure produces the space.As shown in the figure, the upper end of last Sealing 250 is owing to the pressure of last chamber 220 is inclined upwardly with predetermined angle, thus the generation space.As a result, the moving volute 400 that is supported on these Othemos ring 200 upper ends raises slightly by means of the thrust of last Sealing 250.Because the upper end leaving space of last Sealing 250, last Sealing 250 keeps in touch with the lower surface of moving volute 400.Therefore, last Sealing 250 prevents that the coolant gas in the chamber 220 from passing through clearance leakage.
On the contrary, following chamber 230 is opened wide in its lower end.Therefore, the lower end of lower seal 260 that is installed in the inner circumference limit is because downward-sloping and leaving space, and its effect is the same with last Sealing 250.That is to say that because lower seal 260 pushes away the directed thrust directed thrust surfaces 320 of main frame 300, this thrust makes Othemos ring 200 raise slightly from directed thrust directed thrust surfaces 320.This reduces the frictional force of generation between Othemos ring 200 and directed thrust directed thrust surfaces 320.In addition, the oil that flows along directed thrust directed thrust surfaces 320 also moves smoothly.
Simultaneously, as mentioned above, the width of following chamber 230 is greater than the width of last chamber 220.This is because the following pressure of the support of chamber 230 pressure that should be supported greater than last chamber 220.
In addition, the lower end of bypass channel 430 should always be communicated with last chamber 220 when moving volute 400 carries out moving.The moving diameter of bypass channel 430 is preferably in the inner and outer diameter scope of last chamber 220 like this.
And the upper end of bypass channel 430 is communicated with pressing chamber P by the upper surface of moving volute 400.Here, the internal pressure of pressing chamber P increases gradually from the center, lateral of moving volute 400.Therefore, the upper end of bypass channel 430 is formed on the position near moving volute 400 centers, and the counterpressure of the coolant gas of discharging increases.
Scroll compressor according to the present invention forms a plurality of back pressure grooves (pocket) and a plurality of supply hole on Othemos ring, thereby even overload imposes on this compressor, also can supply with oil smoothly between the lower surface of the upper surface of upper frame and moving volute.Therefore, scroll compressor of the present invention has wearing and tearing, frictional heat, noise and the vibration that reduces or eliminates the component that cause owing to friction.
In addition, because oil is transferred to the key part of Othemos ring soon, so Othemos ring can be directed to-and-fro motion linearly more smoothly, thereby reduces noise and vibration and prevent the sputter of oil.
Claims (16)
1. scroll compressor, it comprises fixing volute, be installed in this fixedly the moving volute below the volute and this moving volute support thereon main frame,
This scroll compressor is characterised in that it comprises:
The moving volute has pressing chamber and the bypass channel that runs through its main body upper and lower end at an upper portion thereof;
Fixedly volute allows this moving volute to carry out moving within it with compression refrigerant;
Moving volute landing Othemos ring thereon, this Othemos ring have and are formed on its upper surface and have the last chamber of the predetermined width and the degree of depth and be formed on the following chamber that its lower surface has the predetermined width and the degree of depth; And
This Othemos ring landing main frame thereon.
2. according to the scroll compressor of claim 1, wherein should go up the lower end that the chamber is connected in this bypass channel.
3. according to the scroll compressor of claim 1, wherein this pressing chamber is communicated with the upper end of this bypass channel.
4. according to the scroll compressor of claim 1, wherein when this moving volute carries out moving, between the inner circumference and excircle of chamber on this, the lower end of this bypass channel.
5. according to the scroll compressor of claim 1, wherein upward chamber and/or the formation of following chamber have the annular shape of predetermined diameter.
6. according to the scroll compressor of claim 1, wherein the width of this time chamber is equal to or greater than the width of chamber on this at least.
7. according to the scroll compressor of claim 1, wherein upward chamber and/or following chamber comprise that at least one is seated in its inboard Sealing.
8. according to the scroll compressor of claim 1, also comprise intercommunicating pore and be communicated with following chamber so that should go up the chamber with predetermined diameter.
9. according to the scroll compressor of claim 1, wherein this Othemos ring has the key that at least one stretches out on its lower surface, and
This main frame have at least one keyway in case this key landing within it.
10. scroll compressor, it comprises fixedly volute, be installed in this fixedly below the volute carrying out the moving volute of moving,
This scroll compressor is characterised in that it comprises:
Has the live axle that is formed on oil groove wherein;
Be used to support the main frame of this live axle, this main frame has and relatively is formed on the keyway that its upper surface has predetermined depth and width;
Be combined in the fixedly volute of this main frame regularly;
Be seated in the moving volute on this main frame top, this moving volute has at least one bypass channel in the one side, so that compressed freezing mixture is partly discharged by this bypass channel; And
Be seated in the Othemos ring between this moving volute and the main frame, this Othemos ring has and is used to store a part and discharges the back pressure chamber of compresses refrigerant and predetermined altitude is stretched out on the surface above and/or under its main body projection.
11. according to the scroll compressor of claim 10, wherein, this main frame have the heart therein drive shaft hole in case this live axle by this hole; And
This keyway is from the excircle of this directed thrust directed thrust surfaces center curvature one intended distance to this main frame.
12. according to the scroll compressor of claim 10, wherein, this Othemos ring comprises the back pressure chamber of the annular shape with predetermined width and degree of depth and is installed in Sealing on this back pressure chamber inner circumference,
Wherein, this Othemos ring of pressure owing to this back pressure chamber raises slightly from directed thrust directed thrust surfaces.
13. according to the scroll compressor of claim 10, wherein, this back pressure chamber has substantially
The Sealing of shape is so that prevent that flowing coolant gas is to external leakage within it.
14. according to the scroll compressor of claim 10, wherein, this back pressure chamber comprises:
Be formed on the last back pressure chamber of this Othemos ring upside;
Be formed on the following back pressure chamber of this Othemos ring downside; And
Be used for the chamber and should go up the intercommunicating pore that back pressure chamber is communicated with following back pressure chamber.
15. according to the scroll compressor of claim 10, wherein, this projection comprises:
At least one stretch out predetermined altitude on the upper surface and insert this moving volute bottom on key; And
At least one stretches out predetermined altitude downwards and inserts following key in this main frame on lower surface.
16., wherein, have flexibility and insert in this back pressure chamber by this at least one Sealing of the resin material manufacturing that can stand high temperature according to the scroll compressor of claim 10.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR63672/2003 | 2003-09-15 | ||
| KR10-2003-0063672A KR100512997B1 (en) | 2003-09-15 | 2003-09-15 | Scroll compressor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1598316A true CN1598316A (en) | 2005-03-23 |
| CN1598316B CN1598316B (en) | 2010-05-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2004100785751A Expired - Fee Related CN1598316B (en) | 2003-09-15 | 2004-09-15 | Scroll compressor |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US7341440B2 (en) |
| KR (1) | KR100512997B1 (en) |
| CN (1) | CN1598316B (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102124228A (en) * | 2008-08-05 | 2011-07-13 | (学)斗源学院 | Scroll compressor with improved back pressure control function |
| US8182249B2 (en) | 2008-03-25 | 2012-05-22 | Sanyo Electric Co., Ltd. | Sealed type scroll compressor |
| CN105275802A (en) * | 2014-06-26 | 2016-01-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and heat exchange system |
| CN105673505A (en) * | 2014-11-18 | 2016-06-15 | 上海日立电器有限公司 | Lubricating oil supply structure of scroll mechanism and scroll compressor |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100547331B1 (en) * | 2004-01-09 | 2006-01-26 | 엘지전자 주식회사 | Scroll compressor |
| KR101484538B1 (en) * | 2008-10-15 | 2015-01-20 | 엘지전자 주식회사 | Scoroll compressor and refrigsrator having the same |
| KR20130094648A (en) * | 2012-02-16 | 2013-08-26 | 한라비스테온공조 주식회사 | Electronic compressor |
| CN103835944B (en) * | 2012-11-26 | 2017-10-03 | 华域三电汽车空调有限公司 | Scroll compressor and its it is again started up method |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2162899B (en) * | 1984-06-27 | 1988-06-15 | Toshiba Kk | Scroll compressors |
| JP2674991B2 (en) * | 1986-11-19 | 1997-11-12 | 株式会社日立製作所 | Scroll compressor |
| US5085565A (en) * | 1990-09-24 | 1992-02-04 | Carrier Corporation | Axially compliant scroll with rotating pressure chambers |
| US5413469A (en) * | 1993-06-17 | 1995-05-09 | Zexel Corporation | Thrust bearing arrangement for a drive shaft of a scroll compressor |
| US6146119A (en) * | 1997-11-18 | 2000-11-14 | Carrier Corporation | Pressure actuated seal |
| JP3918277B2 (en) * | 1998-02-20 | 2007-05-23 | 株式会社日立製作所 | Scroll compressor |
| KR100315791B1 (en) | 1999-01-19 | 2001-12-12 | 구자홍 | Scroll Compressor |
| US6341945B1 (en) * | 1999-10-18 | 2002-01-29 | Scroll Technologies | Scroll compressor with reduced capacity at high operating temperatures |
| JP2002021753A (en) * | 2000-07-11 | 2002-01-23 | Fujitsu General Ltd | Scroll compressor |
| JP3933492B2 (en) * | 2002-02-19 | 2007-06-20 | サンデン株式会社 | Scroll compressor |
-
2003
- 2003-09-15 KR KR10-2003-0063672A patent/KR100512997B1/en not_active IP Right Cessation
-
2004
- 2004-09-14 US US10/939,581 patent/US7341440B2/en not_active Expired - Fee Related
- 2004-09-15 CN CN2004100785751A patent/CN1598316B/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8182249B2 (en) | 2008-03-25 | 2012-05-22 | Sanyo Electric Co., Ltd. | Sealed type scroll compressor |
| CN102124228A (en) * | 2008-08-05 | 2011-07-13 | (学)斗源学院 | Scroll compressor with improved back pressure control function |
| US8550797B2 (en) | 2008-08-05 | 2013-10-08 | Doowon Technical College | Scroll compressor with improved back pressure force control function |
| CN102124228B (en) * | 2008-08-05 | 2014-03-12 | (学)斗源学院 | Scroll compressor with improved back pressure control function |
| CN105275802A (en) * | 2014-06-26 | 2016-01-27 | 珠海格力节能环保制冷技术研究中心有限公司 | Scroll compressor and heat exchange system |
| CN105275802B (en) * | 2014-06-26 | 2017-11-14 | 珠海格力节能环保制冷技术研究中心有限公司 | Screw compressor and heat-exchange system |
| CN105673505A (en) * | 2014-11-18 | 2016-06-15 | 上海日立电器有限公司 | Lubricating oil supply structure of scroll mechanism and scroll compressor |
| CN105673505B (en) * | 2014-11-18 | 2017-12-08 | 上海海立新能源技术有限公司 | The lubrication oil supply structure and screw compressor of vortex mechanism |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1598316B (en) | 2010-05-26 |
| US7341440B2 (en) | 2008-03-11 |
| US20050058565A1 (en) | 2005-03-17 |
| KR20050027403A (en) | 2005-03-21 |
| KR100512997B1 (en) | 2005-09-05 |
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